The patent badge is an abbreviated version of the USPTO patent document. The patent badge does contain a link to the full patent document.
The patent badge is an abbreviated version of the USPTO patent document. The patent badge covers the following: Patent number, Date patent was issued, Date patent was filed, Title of the patent, Applicant, Inventor, Assignee, Attorney firm, Primary examiner, Assistant examiner, CPCs, and Abstract. The patent badge does contain a link to the full patent document (in Adobe Acrobat format, aka pdf). To download or print any patent click here.
Patent No.:
Date of Patent:
Jul. 16, 2024
Filed:
Feb. 07, 2023
Tdk Corporation, Tokyo, JP;
Kazuumi Inubushi, Tokyo, JP;
Tomoyuki Sasaki, Tokyo, JP;
TDK CORPORATION, Tokyo, JP;
Abstract
This magnetoresistance effect element includes a first ferromagnetic layer, a second ferromagnetic layer, and a non-magnetic layer. The non-magnetic layer is between the first ferromagnetic layer and the second ferromagnetic layer. The first ferromagnetic layer contains at least partially crystallized Heusler alloy containing Co. The non-magnetic layer has a first non-magnetic region and a second non-magnetic region. Each of the second non-magnetic region is sandwiched between the first non-magnetic regions in a thickness direction of the non-magnetic layer. Atoms or molecules constituting each of the second non-magnetic regions are smaller than atoms or molecules constituting the first non-magnetic region. Each crystal structure of the second non-magnetic region is a NaCl type structure. At least a part of the second non-magnetic region is crystallized continuously with the first non-magnetic region and the first ferromagnetic layer or the second ferromagnetic layer.